| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Addition & Subtraction With Regrouping | 978-0-931993-51-0 | 2020 | |
| Addition: No Regrouping, Featuring Endangered Species | 978-0-931993-49-7 | 1992 | |
| Advanced Multiplication, English and Spanish Edition | 978-0-931993-62-6 | 1993 | |
| Division: Featuring Grassland Animals | 978-0-931993-59-6 | 1993 | |
| Fractions: Featuring Mountain Animals | 978-0-931993-61-9 | 1993 | |
| Mediators of Cellular Immunity | 978-0-12-439350-9 | 1970 | Maurice Landy |
| Multiplication: Factors 1-12, Featuring Desert Animals | 978-0-931993-52-7 | 1992 | |
| Subtraction: No Regrouping, Featuring Rain Forest Animals | 978-0-931993-50-3 | 1992 | |
| Word Problems Book 1 | 978-0-931993-83-1 | 1996 | |
| Word Problems, Book 2 | 978-0-931993-42-8 | 1999 | |
H. Lawrence · H.S. · Henry St.Lawrence Beaufort Moss · S. L. · S. Lawrence